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The asteroid belt is generally regarded as the boundary between the inner solar system and the outer solar system.

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What kind of planets are the first four inner?

Mercury, Venus, Earth, and Mars are the first four inner planets. The asteroid belt is what separates the inner and outer planets from each other. There are thousands of asteroids in the asteroid belt.


What four inner planets are larger than the outer planets?

The inner planets are smaller than the outer planets.


Are the planets with rings inner or outer planets?

Only the four outer planets have rings. The four inner planets (Mercury, Venus, Earth and Mars) dont have rings.


Are the Jovian planets outer planets or inner?

There are four inner planets (Mercury, Venus, Earth and Mars) and four outer planets (Jupiter, Saturn, Uranus and Neptune). So there are an equal number of inner and outer planets.


Are there four inner planets and five outer planets?

if you count Pluto as a planet, then yes.


The four outer planets lie beyond what?

The outer planets lie beyond the asteroid belt.


What is the inner and outer planets and contrast the two groups of planets?

The four inner, rocky planets are also known as the terrestrial planets. These are; Mercury, Venus, Earth and Mars. The four outer gas giant planets are Jupiter, Saturn, Uranus and Neptune. The inner planets are smaller and have a higher average density. The outer planets are much larger, but have no real surface - just atmosphere that gets thicker as you travel inwards. The outer planets all have a ring system (the inner planets dont) while the outer planets have captured a lot more natural satellites or moons than the inner planets.


what Scientists refer to half of the planets as inner planets because they are relatively close to the Sun. They refer to the other half as outer planets. Using the data in the table, classify the planets into one of the two groups.?

One-half of eight is four. So, there are four inner planets and four outer planets. According to the distances in the table, Mercury, Venus, Earth, and Mars are inner planets. Jupiter, Saturn, Uranus, and Neptune are outer planets.


Why are mercuryvenusearthand Mars inner planets?

the four inner planets (mercury, venus, earth and mars) are called the inner planets because they are quite close to the sun. where as the four outer planets ( jupiter, saturn, uranus and neptue) are a lot further away from the sun.


How are inner planets and gas giants similar?

they orbit the sun and are the first four outer planets


Are all inner planets called gas giants?

No that's what the four outer planets are called.


How the inner planets are similar to each other?

The four inner planets are all made of rock or are rock based but the four outer planets are all made of gas or gas based.